Network · AS401840

AS401840 Bad Coder Dot Net

AS401840 (Bad Coder Dot Net) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Network check ASN

AS401840

OwnerBad Coder Dot Net
KindInternet service provider
Servers, not peopleno
IPv4 addresses512
IPv4 ranges2
IPv6 ranges2

Risk score0

Nothing suspicious found.

Largest IPv4 ranges

23.143.108.0/24
199.58.13.0/24

Ranges and owner from DB-IP (CC BY 4.0), updated 2026-10-22.

Check an IP address →

Detect it in code

Spot AS401840 traffic at signup.

Send the visitor's IP. The response includes the ASN, the owner and flags.hosting.

curl https://veqen-app.com/v1/ip/check \
  -H "Authorization: Bearer $VEQEN_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"ip": "203.0.113.7"}'

import os, requests

r = requests.post(
    "https://veqen-app.com/v1/ip/check",
    headers={"Authorization": f"Bearer {os.environ['VEQEN_API_KEY']}"},
    json={"ip": "203.0.113.7"},
    timeout=10,
)
result = r.json()
print(result["risk"]["verdict"], result["risk"]["reasons"])

const res = await fetch("https://veqen-app.com/v1/ip/check", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.VEQEN_API_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({"ip": "203.0.113.7"}),
});
const result = await res.json();
console.log(result.risk.verdict, result.risk.reasons);

Questions

About AS401840

Is AS401840 a datacenter or VPN network?

AS401840 (Bad Coder Dot Net) looks like an internet service provider, so its addresses are mostly real home, business or mobile connections.

Who owns AS401840?

AS401840 is registered to Bad Coder Dot Net. It announces about 512 IPv4 addresses.

How do I detect traffic from AS401840?

Call the Veqen IP check with the visitor's address. The response includes the ASN, the owner and whether the network is a datacenter, VPN network, relay or ISP.